laid with assistance from british telecom who were trial ##ling a thrust bore ##r which had been developed at their research facility at mart ##les ##ham heath . the thrust bore ##r laid 25 yards ( 23 m ) of duct ##ing through which the main ##s cable was pulled into position . the mill was then supplied with lights and sockets on each floor . other work undertaken by the apprentice ##s involved repairing some frost damage to the foundation brick ##work , digging a drainage trench around the mill and moving the auxiliary engine into position . a concrete path around the tower was trapping moisture , leading to rising damp . a french drain was constructed around the mill to remedy these problem . a
laid with assistance from british telecom who were trialling a thrust borer which had been developed at their research facility at martlesham heath. the thrust borer laid 25 yards ( 23 m ) of ducting through which the mains cable was pulled into position. the mill was then supplied with lights and sockets on each floor. other work undertaken by the apprentices involved repairing some frost damage to the foundation brickwork, digging a drainage trench around the mill and moving the auxiliary engine into position. a concrete path around the tower was trapping moisture, leading to rising damp. a french drain was constructed around the mill to remedy these problem. a